Reinforced-fiber container.



,H. C. HERR.

HElNFoRcEn FIBER CONTAINER.

APPLICATION FILED IAN-6,1912.

l 145,41 5. r Patented Jqly' 6, 1915.

plaira sasnanr rrr.

HENRY C. HERR, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR, .'BY MESNE ASSIGN- MENTS, TO SOUTH SIDE TRUST COMPANY, TRUSTEE, OF PITTSBURGH, PENNSYL- VANIA, A CORPORATION OF PENNSYLVANIA.

REINFORCED-FIBER CONTAINER.

Specification of LettersPatent.

Patented July 6, MM5.

To all whom it may concern:

Be it known that I, HENRY C. HERR, a citizen of the United States of America, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Reinforced-Fiber Containers, of which the following is a specification, reference being had therein to the accompanying drawings.

L".lhe invention relates to containers formed of' paper board or fibrous stock and which are usually in the form of cylinders provided with end heads. Such containers have heretofore been used in place of the ordinary wooden barrel for the shipment of various articles but their use. is limited by the weight and character of the contents.

The present invention is designed to greatly extend the use of this type of container by providing a reinforcement or additional element of strength, and specically, by embedding between spirally wound plies of the fiber stock, an expanded sheet metal reinforcement.

In the drawings,-Figure l is a section illustrating the process of forming the body of the container and for reinforcing the same ;-Fig. 2 is a side elevation thereof; Fig. 3 is a cross section illustrating the manner of overlapping the edges of the reinforcement; and Fig. 4 is a longitudinal section showing the manner of securing the container heads. Fig. 5 is a side elevation of the finished article.

The reinforcement which I preferably employ in the manufacture of my container consists of an expanded sheet of metal A having -margina1 imperforated band portions B and an intermediate open mesh integral expanded portion C. Such material I produce by a process forming no part of the present invention and when ready for use is in sheets of a width corresponding to the length of the container, and a length sufficient to form a complete convolution with an overlap.

The preferable method of forming the containeL is to engage one end of the fiber stock with a suitable winding mandrel D yand to then rotate said mandrel through slightly more than one `revolution. The reinforcement A is then introduced between plies and wound with the fiber material through slightly more than another revolution. This may be accomplished by means of a suitable mechanism such as shown, in whichE is a guide sheath surrounding a portion of the mandrel D, and F are rolls for feeding the reinforcement sheet around through said sheath and in between plies of the fiber stock. During this winding operation a suitable adhesive is applied to the adjacent face of the fiber stock which will cement them to the metallic reinforcement and also fills the interstices in the expanded sheet so as to form a complete adhesion between all of the plies.

At the completion of the process the cylindrical spirally wound body has overlapping ends of the reinforcement G and H, and also overlapping ends of the fiber stock I and J which is preferably of greater length than the reinforcement. This will completely embed and protect the metal by the fiber, while the former will impart its strength to the latter, and on account of the overlapping will avoid any weak line.

As has been stated, the marginal portions B of the reinforcement'A are imperforated and form in the complete article, annular bands or hoops which overlap the heads K when inserted into the cylindrical body. These bands thus take care of the shearing stresses produced by the heads, and by reason of the fact that they are integral with the open mesh intermediate portion, the stresses are uniformly distributed without being localized at any one point. The result is an exceedingly strong package,` the weight of which is but slightly greater than one made of any reinforced stock but which is of much greater strength.

What I claim as my invention is:

1. A reinforced tubular fiber body, com prising a spirally woundiber sheet having an expanded sheet metal reinforcement wound intermediate the spiral windings of said fiber stock and completely embedded therebetween, said expanded sheet metal reinforcement being cemented to the spiral windings of the fiber stock and having its opposite edges overlapped.

2. A reinforced tubular fiber body, comprising a spirally wound fiber sheet having an expanded sheet metal reinforcement wound intermediate the spiral windings of said fiber stock and completely embedded i therebetvveen, said expanded sheet metal reinforcement being of a length to haveits opposite edges overlap, the overlapped edges being separated by a Winding of the fibrous material and the sheet metal reinforcement being cemented to the spiral windings ofV the fiber stock,

3. A reinforced tubular ber body, comprising a spirally Wound sheet of liber stock having a plurality of complete convolutions With overlapping end portions, and a reinforcement of expanded sheet metal only intermediate the spiral windings of said ber stock and completely embedded therein, said meente HENRY C. HERR.,

Witnesses:

C. C; Monmsex, 1E. lB`RrrnNoiUn 

